Terrible Pathcare accounting department!

I had twin babies October 2021. They were in NICU for a bit and lots of bloodwork were done. My medical aid covered all hospital expenses. Since the discharge I have been receiving emails with accounts from Pathcare on almost a weekly basis: medical aid not paying. I phoned the medical aid and said the accounts have the wrong information on it. They say Twin one and twin two instead of the real names of the babies. I did mention to the pathcare accounting department that our medical aid will pay out as soon as Pathcare reprocess and send the corrected accounts. Most of the accounts was corrected and promptly paid out. Now 5 months later, I am still getting unpaid accounts that is stating the WRONG names (twin 1 and twin 2). I have phoned them, and emailed them over and over again over the past months. Today, they send me an email stating that they will escalate my account to their outsourced debt collectors, worth approximately R400. It is extremely disappointing that such a big pathology company as Pathcare has such a terrible and *********** account department with a really poor customer service. With the multiple calls I made, I am sure my airtime cost has even exceeded the amount supposedly due to them. We are really disappointed and we hope this issue is solved as soon as possible and that we are contacted. We hope to never have to use the service of Pathcare ever again in the future.